Home / 39,296.67-54,229.41-21,391.81

Finding the Fourth Proportional to 39,296.67, 54,229.41 and 21,391.81

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Solution

The fourth proportional to 39,296.67, 54,229.41 and 21,391.81 is: 29,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,296.67 : 54,229.41 = 21,391.81 : x
  2. Step 2: Convert to fraction form
    39,296.67/54,229.41 = 21,391.81/x
  3. Step 3: Cross multiply
    39,296.67x = 54,229.41 × 21,391.81
  4. Step 4: Simplify right side
    39,296.67x = 1,160,065,235.13
  5. Step 5: Solve for x
    x = 1,160,065,235.13/39,296.67
  6. Step 6: Final answer
    x = 29,520.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.